install: functions "uninstall" and "purge" merged to function "remove"
install: functions "uninstall" and "purge" merged to function "remove"

Before this patch functions "uninstall" and "purge" are almost identical.
Since the only difference is the logging messages, and when the
distro.uninstall() function is called a boolean parameter set both these
functions are merged into a single command "remove" with the parameter
purge.

Signed-off-by: Owen Synge <osynge@suse.com>

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isyippee/ceph-deploy,Vicente-Cheng/ceph-deploy,trhoden/ceph-deploy,SUSE/ceph-deploy,trhoden/ceph-deploy,ceph/ceph-deploy,Vicente-Cheng/ceph-deploy,isyippee/ceph-deploy,codenrhoden/ceph-deploy,SUSE/ceph-deploy,codenrhoden/ceph-deploy,ceph/ceph-deploy